Low-temperature synthesis of single-phase refractory metal compound carbides
Source abstract
Abstract
Abstract The compound carbide of refractory metal had great potential applications in ultra-high temperature, biomedical and nuclear fields. In the present study, a novel method composed of vacuum carbothermal reduction followed by calcium treatment was proposed to synthesize single-phase compound carbide. It was found that the required temperature for the formation of single-phase Ta4HfC5 solid solution in liquid calcium was above 1573 K. Meanwhile, the single-phase binary carbides (NbTaC2), ternary carbides (TiNbTaC3, ZrNbTaC3), quaternary carbides (TiHfNbTaC4, ZrHfNbTaC4), pentanary carbides (TiZrHfNbTaC5) and hexanary carbides (TiZrHfVNbTaC6) were also synthesized by the current method. The formation mechanism of the single-phase compound carbide was discussed and two parameters TSS (based on the mixing enthalpy change and mixing entropy change) and δa (based on the difference of lattice parameter) were proposed for predicting the formation ability of solid solution. It was found that the necessary conditions for formation of solid solution by current method were TSS
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
Show source-provided references
1. Pressure-enhanced densification of TaC ceramics during flash spark plasma sintering10.1111/jace.16087 ↗
2. Shear-induced brittle failure of titanium carbide from quantum mechanics simulations10.1111/jace.15577 ↗
3. Impact of Titania nanoparticles addition on the microstructure and properties of MgO-C refractories10.1016/j.ceramint.2017.08.094 ↗
4. Electrochemical deposition of tantalum carbide coatings in molten LiCl-KCl-K2CO310.1111/jace.15535 ↗
5. Nanoindentation and tribology of VC, NbC and ZrC refractory carbides10.1016/j.jeurceramsoc.2017.04.064 ↗
6. Oxidation resistance of tantalum carbide-hafnium carbide solid solutions under the extreme conditions of a plasma jet10.1016/j.ceramint.2017.07.227 ↗
7. Synthesis and characterization of (Zr1/3Nb1/3Ti1/3) C metal carbide solid-solution ceramic10.1111/jace.16141 ↗
8. High entropy carbide ceramics from different starting materials10.1016/j.jeurceramsoc.2019.04.006 ↗
9. Thermophysical properties of the most refractory carbide Ta0.8Hf0.2C under high temperatures (2000–5000 K)10.1016/j.jeurceramsoc.2018.11.030 ↗
10. Phase evolution and properties of (VNbTaMoW)C high entropy carbide prepared by reaction synthesis10.1016/j.jeurceramsoc.2020.03.020 ↗
11. Low-temperature sintering of single-phase, high-entropy carbide ceramics10.1111/jace.16672 ↗
12. Phase stability and mechanical properties of novel high entropy transition metal carbides10.1016/j.actamat.2018.12.054 ↗
13. The effect of submicron grain size on thermal stability and mechanical properties of high-entropy carbide ceramics10.1111/jace.17103 ↗
14. The role of multi-elements and interlayer on the oxidation behaviour of (Hf-Ta-Zr-Nb)C high entropy ceramics10.1016/j.corsci.2020.109019 ↗
15. Electron and phonon thermal conductivity in high entropy carbides with variable carbon content10.1016/j.actamat.2020.06.005 ↗
16. Prediction of the material with highest known melting point from ab initio molecular dynamics calculations10.1103/PhysRevB.92.020104 ↗
17. Sintering behaviour, solid solution formation and characterisation of TaC, HfC and TaC-HfC fabricated by spark plasma sintering10.1016/j.jeurceramsoc.2016.02.009 ↗
18. Phase diagram of the pseudo-binary TiC-NbC, TiC-TaC, ZrC-NbC, ZrC-TaC and HfC-TaC carbide systems
19. Melting point in systems ZrC-HfC, TaC-ZrC, TaC-HfC10.1007/BF00773385 ↗
20. Investigations of high-melting point carbide systems and their contribution to the problem of carbon fusion
21. Processing and properties of high-entropy ultra-high temperature carbides10.1038/s41598-018-26827-1 ↗
22. High-entropy carbide: a novel class of multicomponent ceramics10.1016/j.ceramint.2018.08.100 ↗
23. (Hf0. 2Zr0. 2Ta0. 2Nb0. 2Ti0. 2)C high-entropy ceramics with low thermal conductivity10.1111/jace.15779 ↗
24. In vitro biocompatibility of Si alloyed multi-principal element carbide coatings10.1371/journal.pone.0161151 ↗
25. Production and mechanical properties of high-entropic carbide based on the TiZrHfVNbTa multicomponent alloy10.3103/S1063457617030030 ↗
26. High-entropy high-hardness metal carbides discovered by entropy descriptors10.1038/s41467-018-07160-7 ↗
27. Ultra-high temperature ceramics: materials for extreme environments10.1016/j.scriptamat.2016.10.018 ↗
28. Synthesis of single-phase high-entropy carbide powders10.1016/j.scriptamat.2018.10.049 ↗
29. Liquid precursor-derived high-entropy carbide nanopowders10.1016/j.ceramint.2019.07.244 ↗
30. Synthesis of high purity nano-sized transition-metal carbides10.1016/j.jmrt.2020.08.053 ↗
31. The constitution of the mixed crystals and the filling of space of the atoms10.1007/BF01349680 ↗
32. Accelerated exploration of multi-principal element alloys with solid solution phases10.1038/ncomms7529 ↗
33. Modeling the structure and thermodynamics of high-entropy alloys10.1557/jmr.2018.222 ↗
34. Entropy-stabilized oxides10.1038/ncomms9485 ↗
35. Charge compensation and electrostatic transferability in three entropy-stabilized oxides: results from density functional theory calculations10.1063/1.4962135 ↗
36. High-entropy metal diborides: a new class of high-entropy materials and a new type of ultrahigh temperature ceramics10.1038/srep37946 ↗
37. Microstructure of (Hf-Ta-Zr-Nb)C high-entropy carbide at micro and nano/atomic level10.1016/j.jeurceramsoc.2018.05.006 ↗
38. Ultra-high strength TiC/refractory high-entropy-alloy composite prepared by powder metallurgy10.1007/s11837-017-2267-0 ↗
39. Microstructures and properties of high-entropy alloys10.1016/j.pmatsci.2013.10.001 ↗
40. Low-temperature molten salt synthesis of high-entropy carbide nanopowders10.1111/jace.16896 ↗
41. AFLOW-CHULL: cloud-oriented platform for autonomous phase stability analysis10.1021/acs.jcim.8b00393 ↗
42. A first-principles study of the stability and mechanical properties of ternary transition metal carbide alloys10.1063/1.5096646 ↗
43. Critical assessment and thermodynamic calculation of the ternary system C-Hf-Zr (carbon-zirconium-hafnium)10.1361/105497102770331703 ↗
44. Effect of carbon vacancies on thermodynamic properties of TiC-ZrC mixed carbides10.1016/j.calphad.2014.02.005 ↗
45. Thermodynamic assessment of the C-Zr-Nb ternary system10.1016/j.calphad.2018.02.009 ↗
46. Fabrication and characterization of polymer-derived high-entropy carbide ceramic powders10.1111/jace.17134 ↗
47. One-step synthesis of coral-like high-entropy metal carbide powders10.1111/jace.16514 ↗